421052635390 has 16 divisors (see below), whose sum is σ = 758811197232. Its totient is φ = 168217397824.

The previous prime is 421052635373. The next prime is 421052635441. The reversal of 421052635390 is 93536250124.

It is a super-3 number, since 3×421052635390³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25448359 + ... + 25464898.

It is an arithmetic number, because the mean of its divisors is an integer number (47425699827).

Almost surely, 2^421052635390 is an apocalyptic number.

421052635390 is a deficient number, since it is larger than the sum of its proper divisors (337758561842).

421052635390 is a wasteful number, since it uses less digits than its factorization.

421052635390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50914091.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 421052635390 in words is "four hundred twenty-one billion, fifty-two million, six hundred thirty-five thousand, three hundred ninety".